Three parts of mine design: feasibility study, preliminary design, and construction plan
The key to mine design is all must be established on the basis of detailed investigation, and therefore Xinhai Mine Design Institute will firstly take a comprehensive field study to the mine of clients including the crude ore for dressing plant, site, water, electricity, traffic, geography, etc.
These investigation contents need the cooperation of geology, mining, ore dressing, smelting, machinery, civil engineering, electric power and other departments.

I Feasibility study

In the feasibility study stage, first, Mine Design Institute and the client need to sign the entrustment agreement. After the two sides reaching an agreement, Xinhai Mine Design Institute starts to establish a working group for work including: planning, investigation, data collection, planning and optimization, project evaluation, "report" writing, and exchanging views with commissioned units to form a formal report.
In all the work of the working group to carry out, investigation, data collection and plan optimization is the most important basis for selecting plant construction scheme. For these important parts, the working group requires different professional division and cooperation, including:

2, Mining specialty ： Information collection: (1), Opinion and requirements of clients of mine construction (2), For new mines, collecting the existing layout maps of exploration engineering; for technical improvement mines, collecting the existing transit system information (3), Detailed knowledge of mining area terrain and surrounding environment conditions; (4), Design information of the preliminary design stage of mine.
According to this collecting information, mining experts design or optimize the mining method, equipment, ventilation system and so on, and come up with a feasible plan for mining section.

4, Civil engineering specialty ：Information collection (1), Investigation field geomorphic condition (2), Collecting hydrological data and "geotechnical engineering investigation report"; (3), To know the local architectural style, structure, waterproof, thermal insulation and other building practices (4), Investigation of material sources, transportation and price of the local building including gravel, brick, lumber, steel, cement, etc. Basing on these data, Civil Engineering Department explains the form of building construction for customers in the report and determines the main project structure and the main construction method.

5, Electric power specialty ： For new mine, information collection (1), The electricity supply environment of mine (2), Topography and geomorphology between ore area and current source (3), The basic condition of transformer substation (4), The requirements of local power supply department, such as power, power supply mode, the starting mode of large electrical equipment (5), The local requirements of lightning protection and grounding (6), The condition of external communication and local communication. For improvement and extension mine, information collection (1), Mine power supply existing situation (2), The general situation of transformer substation (3), The setting situation of existing safety source (4), Existing communication situation.
After collecting information, electrical power specialty comes up with feasibility program for electric power system of a new mine or improvement & extension mine.

6, Mineral dressing specialty： Information collection for new mine: "Ore beneficiability test report", plant topographic map (1:500 1:1000), the water, electricity, tailings dam, environmental protection requirements, the construction standards, the amount of investment and building an opinion of owners. Information collection for extension mine: the current project scale, ore beneficiability test report, the present production process, operating parameters, material consumption, existing specification and production capacity of equipment, general layout plans of the existing processing plant, equipment layout plans of a workshop, production problems. Basing on these data, mineral dressing specialty comes up with a feasible solution for new or renovation and expansion mineral dressing plant.
In addition, the specialties needing to collecting information including general plan transportation (geographic and topographic data; social economy; weather; flood; engineering geology and hydrology geology; traffic; environmental protection), tailings (tailings information, hydrometeor), drainage, HVAC, etc.
By the data collection and the feasibility study from the various specialties, Mine Design Institute ultimately determines a feasible scheme for the plant construction and writes the " feasibility study report " submitted to the relevant departments.
"Feasibility study report" with strict requirements on qualification, ability, experience, professional title of a writer is an important basis for evaluation EIA and safety unit (some projects must take soil and water conservation and land reclamation evaluation).
Clients would have a general understanding of the dressing plant scale, investment scale, profit and other key factors by "Feasibility study report".

II Preliminary design

After "Feasibility study report" approved, Mine Design Institute starts preliminary design and comes up with the design of dressing plant construction. Design mainly involves dressing, general layout, electric power, communication, civil engineering, environmental protection, water supply and drainage, tailings, safety and fire protection, investment estimates, economic benefit. For the improvement and extension enterprises, the preliminary design will illustrate the status, characteristics, plant, main problems, utilization of main buildings and equipment.
Xinhai Mine Design Institute has many engineers who can design different types of dressing plants (less investment, quick capital return or easy management) according to clients' requirements. what's more, the design cost is lower than the national standard.
After the completion of the preliminary design, Design Institute experts will gather all content to form the detailed "Preliminary design report " submitted to the competent department of Mine Design Institute.

III Working drawings

When the preliminary design is approved, Mine Design Institute starts to design working drawings. Every aspect of dressing plant needs a lot of construction drawings (generally, over 100 working drawings), such as civil construction. Engineers of Xinhai Mining Institute are numerous with rich experience and drawing speed. When the working drawings completed, the designers must hand the drawings over to construction commanding officers, especially, the notes, strict regulation and important content.

Xinhai Mine Design Institute

Xinhai Mine Design Institute is the first mineral processing design institute, with class A design qualification of metallurgical industry, which can undertake the design business of non-ferrous metals industry construction projects and support engineering without scale limitation.
Xinhai Mine Design Institute provides technical support for EPC, mainly responsible for the relevant problems of mine design and mine consulting. Over the past 20 years, hundreds of Xinhai EPC are completed successfully relying on the technical support of Mine Design Institute as.
Xinhai Mine Design Institute owns over 200 professionals from various specialties including geology, mining, mineral machinery, ore dressing, smelting, civil engineering, electric power, general drawing, drainage, tailings, heating and ventilation, technical economy, budget, etc.

01Mining Department

Mining Department is usually carried out geological exploration and survey and provides mining method and equipment according to the opinion & requirement of clients, terrain landform and the surrounding environment of the mining area.
In engineering consulting, Mining Department provides a better mining method and outline of mining equipment list according to the actual situation and their rich experience. They would estimate the investment and economic benefits of mining part. In addition, they also solve the problems of mining for clients.

02Electric Power Department

The Electric Power Department mainly solves the problem of power and lighting of mines and factory, including power load, power supply source, and power supply system.
In the engineering consulting, the Electric Power Department will first have a detailed understanding about power condition and plant, and then provides a general electric equipment list according to the actual situation, finally providing the cost quotation of factory power part.

03Civil Engineering Department

Civil Engineering Department is responsible for the design and construction of mine workshop, office building, warehouse, process matching workshop etc.
Civil Engineering Department should understand the local meteorological and seismic condition, and designs supporting facilities according to the process design of the Mineral Dressing Research Institute and plant construction site, and finally, gives general quotation with consideration of materials and size of buildings.